Shotgun stock



FIG. 1 is a perspective view showing the right side, top and rear of the shotgun stock showing our new design;

FIG. 2 is a right side view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line showing of the body of a gun in FIG. 2 is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a shotgun stock, as shown and described. 